问题详情

Why is it difficult to study folklore today？

A．Because participants are now influenced by earlier studies of their activities.

B．Because participants insist on the accuracy of their own interpretations.

C．Because folklorists are too concerned to justify their own theories.

D．Because folklorists are often misled by unreliable earlier studies.

请帮忙给出正确答案和分析，谢谢！